#include <stdio.h>
#include "head.h"
// 20191326 叶家星
int main(void) {
    int a, b;
    printf("enter two numbers:");
    scanf("%d %d", &a, &b);
    printf("add:%d\n", add(a, b));
    printf("sub:%d\n", sub(a, b));
    printf("mul:%d\n", mul(a, b));
    printf("div:%lf\n", div(a, b));
    for (int i = 1; i <= 1326; i++) {
        printf("%d\n", i);
    }
    return 0;
}
